Investigation of Antioxidant and Antimicrobial Activities of Different Extracts of Auricularia and Termitomyces Species of Mushrooms.

In conclusion, the extracts of Auricularia spp. and Termitomyces spp. have shown promising antimicrobial and antioxidant activities. PMID: 31427902 [PubMed - in process]
Source: The Scientific World Journal - Category: Science Tags: ScientificWorldJournal Source Type: research

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In this study, garcinol has successfully used to reduce silver ions to silver in order to synthesize G-AgNPs. The formation and the structure of G-AgNPs were confirmed by UV-Visible spectroscopy, FTIR spectroscopy and TEM. The antimicrobial activity of garcinol and G-AgNPs were investigated by well diffusion assay, broth micro dilution assay and time-kill kinetic study, over selected five microbial species including Staphylococcus aureus (ATCC 25623), Pseudomonas aeruginosa (ATCC 27853), Escherichia coli (ATCC 25922), Candida albicans (ATCC 10231) and clinical isolates of Methicillin Resistant Staphylococcus aureus (MRSA)....
Source: Journal of Microbiology and Biotechnology - Category: Biotechnology Authors: Tags: J Microbiol Biotechnol Source Type: research
This study aimed at developing an antimicrobial material based on hydroxyapatite (HAp) and peppermint essential oil (P-EO) in order to stimulate the antimicrobial activity of hydroxyapatite. The molecular spectral features and morphology of the P-EO, HAp and hydroxyapatite coated with peppermint essential oil (HAp-P) were analyzed using Fourier-transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM). The coating of the HAp with the P-EO did not affect the ellipsoidal shape of the nanoparticles. The overlapping of IR bands of P-EO and HAp in the HAp-P spectrum determined the formation of the broad mole...
Source: Molecules - Category: Chemistry Authors: Tags: Article Source Type: research
In this study, we report a series of cationic peptidopolysaccharides synthesized by thiol-ene click chemistry of grafting antimicrobial polypeptides, methacrylate-ended poly(lysine-random-phenylalanine) (Me-KnFm), onto a thiolated polysaccharide (Dextran, Dex) backbone. Their copolymers (Dex-g-KnFm) exhibit potent broad-spectrum antibacterial and antifungal activity against Gram-negative bacteria (Pseudomonas aeruginosa and Escherichia coli), Gram-positive bacteria (methicillin-resistant Staphylococcus aureus (MRSA) and Staphylococcus epidermidis) and fungi (Candida albicans) with minimal inhibitory concentrations at a ran...
Source: Biomacromolecules - Category: Biochemistry Authors: Tags: Biomacromolecules Source Type: research
Conclusion: The River Nile could be a new source for production of promising bioactive leading compound where antimicrobial and antiparasitic activities may be correlated. Introduction Nature is an exceptional resource of new biologically active compounds with an astonishing chemical diversity such as that found in plant species, animals, and microorganisms (Butler et al., 2014). Microbial diversity constitutes an infinite pool of novel chemistry, making up a valuable source for innovative biotechnology (Bérdy, 2005; Fenical and Jensen, 2006). The aquatic environment is now becoming more appreciated as a ri...
Source: Frontiers in Microbiology - Category: Microbiology Source Type: research
Raquel Ferrer-Espada1,2, Xiaojing Liu1,2, Xueping Sharon Goh1,2 and Tianhong Dai1,2* 1Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States 2Vaccine &Immunotherapy Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States Polymicrobial biofilms, in which mixed microbial species are present, play a significant role in persistent infections. Furthermore, polymicrobial biofilms promote antibiotic resistance by allowing interspecies transfer of antibiotic resistance genes. In the present study, we investigated the effec...
Source: Frontiers in Microbiology - Category: Microbiology Source Type: research
This study aimed to contribute to the need of finding new and more effective bioactive molecules against several of the earlier mentioned threats faced by human kind nowadays. For this, eighteen species from the Actinomycetales previously isolated from Erylus spp. sponges collected in Portuguese marine waters (Açores, Madeira, and continental shelf) were screened for antimicrobial, anti-cancer, anti-parasitic and anti-obesogenic activities. Materials and Methods Biological Material The bacteria under study belong to the order Actinomycetales within the phylum Actinobacteria and were isolated from marine sponges o...
Source: Frontiers in Microbiology - Category: Microbiology Source Type: research
Mariana Girão1,2, Inês Ribeiro1, Tiago Ribeiro1, Isabel C. Azevedo1, Filipe Pereira1, Ralph Urbatzka1, Pedro N. Leão1 and Maria F. Carvalho1* 1Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Porto, Portugal 2Department of Biology, Faculty of Sciences, University of Porto, Porto, Portugal Nature is the major reservoir of biologically active molecules. The urgent need of finding novel molecules for pharmaceutical application is prompting the research of underexplored environments, such as marine ecosystems. Here, we investigated cultivable actinobacteria asso...
Source: Frontiers in Microbiology - Category: Microbiology Source Type: research
Publication date: Available online 3 April 2019Source: Journal of Molecular LiquidsAuthor(s): Nadjet Rezki, Salsabeel A. Al-Sodies, Hany E.A. Ahmed, Saleh Ihmaid, Mouslim Messali, Sahar Ahmed, Mohamed Reda AouadAbstractA focused library of new dicationic ionic liquids (DiILs) 6–41 appended pyridinium hydrazone and phenoxy side chain hybrids as counter cations were designed and synthesized, utilizing quaternization and metathesis reactions under both conventional and microwave irradiation. The novel DiILs 6–41 were fully characterized using different spectroscopic tools (1H, 13C, 19F, 11B, 31P NMR and mass spect...
Source: Journal of Molecular Liquids - Category: Molecular Biology Source Type: research
Conclusion: The present study has shown that the extracts of the three wild mushrooms have shown promising antimicrobial activities against the tested organisms. PMID: 30906415 [PubMed]
Source: Evidence-based Complementary and Alternative Medicine - Category: Complementary Medicine Tags: Evid Based Complement Alternat Med Source Type: research
In conclusion, it was suggested that L. tigrinus can be used as a natural source due to its antioxidant and antimicrobial activities. PMID: 30515206 [PubMed]
Source: Advances in Pharmacological Sciences - Category: Drugs & Pharmacology Tags: Adv Pharmacol Sci Source Type: research
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